Accurate Analysis of Double-Weight Optical CDMA With Power Control

Author

Yang, Guu-Chang ; Chen, Chih-Hao ; Kwong, Wing C.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan

Volume

60

Issue

2

fYear

2012

fDate

2/1/2012 12:00:00 AM

Firstpage

322

Lastpage

327

Abstract

Due to power restriction of some laser sources, the use of same optical power in every bit duration (i.e., same bit power) of double-weight codes in optical code-division multiple access (O-CDMA) with differential quality-of-service (QoS) was previously studied and analyzed with approximated performance. In this paper, an exact analytical model is formulated and validated with computer simulation, establishing accurate relationships of code weight, chip power, and bit power with code performance. Besides better understandings the role of power control in variable-weight O-CDMA with differential QoS, such accurate analytical model is important for power-sensitive applications, such as in-service monitoring and fiber-fault surveillance in optical networks and sensor-identification in fiber-sensor systems with the use of optical codes.

Keywords

code division multiple access; optical communication; optical fibre networks; quality of service; O-CDMA; QoS; bit power; chip power; code weight; differential quality-of-service; double-weight codes; double-weight optical CDMA; fiber-fault surveillance; fiber-sensor system; in-service monitoring; optical code-division multiple access; optical network; optical power; power control; power-sensitive application; sensor-identification; Adaptive optics; Analytical models; Error probability; Multiaccess communication; Passive optical networks; Power control; Quality of service; Optical code division multiple access; power control; quality of service; variable weight;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2011.100411.110079

Filename

6042894